Abstract
A 45-year-old man without symptoms was pointed out as showing an abnormal shadow on a radiograph examination. A chest computed tomography (CT) scan revealed an encapsulated 38-mm mass in the anterior mediastinum. Surgical resection of the tumor which had adhered to the right middle lobe was performed employing VATS from the right-sided thorax. During the operation, a thymic carcinoid was suspected histopathologically; however, the mediastinal lymph node was not dissected because there was macroscopically no invasion to adjacent organs and preoperative evaluation revealed no lymph node metastases. The postoperative histopathological diagnosis was atypical carcinoid of the thymus with microinvasion to fat tissue. (WHO-TNM stage II). No adjuvant therapy was administered. He was alive without any evidence of recurrence one year after surgery.
